Q: How to ensure product quality? Answer: We will produce products according to CE, GS, UL certification and ISO9000 quality system certification before shipment. Our main market is the high-end market in Europe and America, and our products are trusted by customers. Q: What is the standard delivery time for samples and mass production? A: The sample takes about 7 working days; for bulk orders, it depends on your order quantity. It usually takes 15 to 30 days. Q: How long is the warranty? Answer: One year from the date of shipment.